... 2.Watt:20w-105w 3.Input:110-127V,220-240V,50HZ,60HZ 4.shape: 29mmx41mm 5.tw130 Standard Magnetic transformer YJ-T ... incandescents lampsShape(H*W):29mm*41mmtw:130Specifications:1.Wattage:15-20W,25-40W,35-50W,40-60W,45-80W,70-105W2 ... , good silicon steel5.Qualified sample is available 50w/105w magnetic transformer 12V